Medical aid



FIG. 1 is a perspective view of a medical aid, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view of a second embodiment of the medical aid;

FIG. 8 is a side elevational view thereof, with all other sides being substantially identical thereto; and,

FIG. 9 is a bottom plan view thereof. 

The ornamental design for a medical aid, as shown and described. 